Cassidy, Gary. "Chapter 3: Improvisation and Characterisation." The Routledge Performance Archive. : Taylor and Francis, 2016. Date Accessed 25 Apr. 2024 https://www.routledgeperformancearchive.com/browse/commentators/gary-cassidy/chapter-3-improvisation-and-characterisation
Cassidy, G.(2016). Chapter 3: Improvisation and Characterisation. In The Routledge Performance Archive. : Taylor and Francis. Retrieved 25 Apr. 2024, from https://www.routledgeperformancearchive.com/browse/commentators/gary-cassidy/chapter-3-improvisation-and-characterisation
Cassidy, G. 2016, 'Chapter 3: Improvisation and Characterisation' in Routledge Performance Archive, Taylor and Francis, viewed 25 April 2024, <https://www.routledgeperformancearchive.com/browse/commentators/gary-cassidy/chapter-3-improvisation-and-characterisation>